Shwinkwrap with evenly spaced face edges
Ok guys, solved my problem.
What follows is a brief tutorial through the steps I used.
Simple example here, but a better possible implementation is decribed at the bottom.

-I started with a sphere I deformed a bit to get it to be irregular
-Went in edit mode and selected a loop ring (Alt+RMB)

-Duplicated the loop ring (Shift+D, Enter). Separated it from the original shape (P), moved it +2 on Z-axis

-I converted the loop ring from Mesh to Curve (Spacebar -> "Convert")
-Created a Plane and scaled it to the size I needed. Applied to it an array modifier and a curve modifier (along the loop ring)
 
-Applied the modifiers. Merged the two ends (select vertices in Edit Mode, Spacebar -> "Merge". Or Alt+M. At center)
-moved the plane -2 along Z-axis (G Z)


These planes are not "parallel" to the object's surface. I reckon you could repeat the process for two separate edge loops (the closest to the area you want to cover). Create two separate planes, or segments (?) and array them for the same number of times. Merge the "ring" ends you get. Only keep the inner edge loops, delete the rest (if you used planes). Join the two edge loops in one object. Bridge the two edge loops. This way you get trapezoidal planes, which give the right angle to child objects in case you want to dupliface the loop's faces. :)

Ask if you need any other help :)